No abstract

Wireless ultraviolet communication uses the atmospheric scattering effect for signal transmission, and this paper improves the partially important sampling model (MCI-PIS) in the Monte Carlo integration method, and the improved model is used to simulate the influence of multiple system parameters such as communication distance, transceiver tilt angle, transceiver divergence angle on the path loss and impulse response of ultraviolet light communication.The simulation results show that the path loss of the improved model for multiple scattering of ultraviolet light is increased by 0.2-2dB, and the impulse response is almost the same as that of MCI-PIS, but the calculation effect is increased by 20% compared with the MCI-PIS model. INDEX TERMS UV light communication,Multiple scattering,Monte Carlo,Computational efficiency I. INTRODUCTION W IRELESS ultraviolet communication uses ultraviolet light in the "sun blind" band (200nm − 280nm) as the information carrier and uses the scattering effect of the atmosphere on photons to communicate. It overcomes the disadvantages of free-space optical communication, which requires line-of-sight, and can adapt to more cpmplex environments.It is because of the above advantages of UV light that UV communication has gradually become a hot research topic in the field of optical communication. The unique scattering propagation mode of UV light leads to unique channel model of UV communication. Before applying wireless UV communication system, it is necessary to study the channel model of UV communication and to analysis its performance under different system parameters.